🔧 Utility & Conversion Calculators

Everyday utility tools and converters for work, travel, cooking, and home. Convert units, estimate bills, plan trips, and solve everyday calculations instantly.

Converters

Unit Converter

Convert length, weight, temperature, volume, and more

Currency Converter

Convert between major world currencies

Cooking Converter

Convert cups, tablespoons, grams, oz, and more

Binary Converter

Convert between binary, decimal, hex, and octal

Home & Bills

Electricity Bill Calculator

Estimate your monthly electricity cost by appliance

Tip Calculator

Calculate tips and split bills for any group size

Discount Calculator

Find sale prices and savings amounts instantly

Travel & Transport

Trip Cost Calculator

Estimate total fuel and travel costs for any journey

Fuel Cost Calculator

Calculate fuel costs per mile or kilometer

Running Pace Calculator

Calculate pace, speed, and time for any distance

Time & Date

Date Difference Calculator

Find the number of days between any two dates

Age Calculator

Calculate exact age in years, months, and days

Time Calculator

Add and subtract hours, minutes, and seconds

Hours Calculator

Calculate total work hours for any time range

Tech Tools

Password Generator

Create strong, random passwords instantly

QR Code Generator

Generate QR codes for any URL or text

Random Number Generator

Generate random numbers within any range

Subnet Calculator

Calculate IP subnet masks and network ranges

Everyday Tools, Zero Sign-Up

All utility calculators on FreebieCalculator.com are completely free and require no account or registration. They work on any device, load instantly, and keep your data private — all calculations happen locally in your browser.

Last Updated: July 4, 2026